Coupling means for tubular electrical conductor sections



Nov. 23, 1943. w. A. BRUNO COUPLING MEANS FOR TUBULAR ELECTRICALCONDUCTOR SECTIONS 2 Sheetls-Sheet 1 Filed June 23, 1942 INVENTOR lV/ZL/AM A. 520w MM MW ATTORNEY Nov. 23,1943. w, BRUNO 2,335,040

COUPLING mmms FOR TUBULAR ELECTRICAL comauc'ron snc'nous Filed June 23,1942 -2 Sheets-Sheet 2 INVENTOR W/a IAM ABQI/w Wm WM ATTORNEY PatentedNov. 23, 1943 COUPLING MEANS FOR TUBULAR ELECTRI- CAL CONDUCTOR SECTIONSWilliam A. Bruno, Astoria, Long Island, N. Y., as-

signor to Bruno Patents, lnc., Long Island City,

Application June 23, 1942, Serial No. 448,069 2 Claims. (01. 285-140)This invention relates to connecters for tubular elements, and hasparticular relation to connecters for coupling tubular conductors suchas outer conductors for co-axial cables, wave guides, or otherhigh-frequency conductors.

The main object of this invention is to provide an improved connecterfor tubular electrical high-frequency conductors of the type disclosedin my co-pending application Serial No. 421,453. filed December 3, 1941,said connecter being adapted to be quickly assembled and taken apart andto provide for a safe and low loss electrical connection ofsubstantially constant impedance" of the parts to be connected.

Another object of the invention is to provide a connecter which forms asatisfactory gaseous seal between the elements to be connected.

A further object of this invention is to provide a connecter which canbe easily assembled and brought into safe and tight engagement in anydesired position of axially aligned tubular elements to be coupled.

Further objects and the advantages of this invention will appear fromthe following specification and claims, taken in connection with theappended drawings, wherein:

Fig. 1 shows a preferred embodiment of a connecter according to thisinvention partly in section, and partly in elevation;

Fig. 2 is an end view of the connecter shown in Fig. 1;

Fig. 3 illustrates a modified embodiment of the invention;

Fig. 4 is the front view of a removabl flange used in devices of thetype shown in Figs. 1 and 3;

Fig. 5 shows a further modification of my connecter partly in sectionand partly in elevation;

Fig. 6 is an end view of the connecter shown in Fig. 5;

Fig. '7 shows a further embodiment of my connecter partly in section andpartly in elevation; and

Fig. 8 is a front view of a removable flange shown in Fig. 7.

Referring now to Figs. 1 and 2, section of an outer conductor of anultra-high frequency coaxial cable is provided with an end member I,while the adjoining section 2 of said co-axial cable is provided with anend member 2'. These end members are connected with the respectivesections l and 2, for example by soldering. Member I is flanged at 3|,and is provided with a conical end portion 4, and with an adjacentcylindrical portion M, which extends in axial direction. End member 2'is flanged at 32, and is provided with an outwardly tapering inner endportion I0, and an inner cylindrical portion l5, which extends in axialdirection. This cylindrical portion is adapted to receive saidcylindrical portion M of end member and serves as a guide for end memberThis end member is also. provided with a recess I6, which is adapted toreceive a correspondingly projecting part H of end member 2' in spacedrelation, so that a suitable packing element, such as a neoprene gasketl8 may be inserted between said projecting part l1 and recess Hi.

In order to bring end members and 2' into tight engagement, removableflange H and I2 are placed on said members and 2'. Each of these flangesII and I2 is provided with a circular orifice 23 and an annular reces22, adapted to receive the integral flange portion 3| and 32 of endmembers and 2', respectively, and also provided with holes 33 adapted toreceive screws l9. Th depth of annular recesses 22 is somewhat smallerthan the thickness of the flange portions 3| and 32 so that these flangeportions slightly protrude from said annular recesses. Flanges H and I2are preferably of a substantially equal design and of substantiallyequal dimensions, and those portions of the integral flanges 3| and 32which are received by annular recesses 22 and circular orifices 23 arethen also of a substantially equal design. By screwing screws I9 inholes 33, flange portions 3| and 32, as well as end members and 2proper, may be brought into tight engagement. It is noted that suchtightening does not require any radial alignment of end pieces I and 2'.

In the connecter for tubular high-frequency conductors illustrated inFig. 3, only one removable flange is used in combination with anintegral flange portion of the adjoining end piece. End piece 2' isprovided with an integral flange portion 32, which is larger than thecorresponding flange portion 3| of end piece I. A removable flangeprovided with a circular orifice 23 and an annular reces 22 adapted toreceive flange portion 3| is applied to end piece By screwing screw 19into the holes provided in flange portion 32 and flange end pieces I and2 may be brought into tight engagement.

Referring now to Figures 5 and 6, tubular conductor sections and 2 aresoldered to end memhers I and 2' respectively. Member I is provided witha projecting ring portion 3, and has a conical end portion 4. Member 2'is formed with a shoulder 5 provided with a screw-thread 8. This member2 has a conical end portion 10, said end portion l being adapted toreceive conical'end portion 4 of section I. As indicated in thedrawings, the angle formed by conical surface 4 and the axiallyextending inner cylindrical surface of end piece I is slightly smallerthan the corresponding angle formed by the conical surface of endportion l0 and the axially extending inner cylindrical surface of endpiece 2', the difference between said angles preferably amounting toabout 2 to 3. End portions l and 2' may be brought into tight engagementby means of clamping nut 8 which is provided with thread 9. Owing tothis shape of the adjoining end pieces, contact is formed in theconnecter at the tips of conical portions 4 and Hi.

The connecter illustrated in Figures 7 and 8 comprises end pieces of adesign similar to that of the end pieces shown in Figures and 6.However, in the embodiment shown in Figures 7 and 8, tightening of theconnector parts is efiected. by removable flanges H and i2 and screwsinserted in these flanges. These flanges, which are preferably of anequal design and of equal dimensions, are provided with a circularorifice 23 and annular recess 22 receiving registering flanged portions3 and 5, said portions 3 and 5 slightly protruding from said annularrecesses when the connecter parts are assembled as shown in thedrawings. By screwing screws l9 in holes 33, flanged portions 3 and 5 aswell as end members I and 2 proper may be brought into tight engagement.

It is to be understood that my invention is not limited to the specificembodiments presented herein for illustration, and is susceptible ofnumerous modifications within the scope and. spirit of the invention asdefined in the appended claims.

I claim:

1. In a connector for connecting tubular, electrical conductor sections,two end members. pro-- vided with registering tapered end portions, thetapers of said end portions being at slightly different angles, meansadapted to bring said end members into tight engagement and to causeformation of contact at the tips of said tapered end portions, saidmeans comprising two loose flanges of substantially equal design, andelements for bringing said flanges into engagement, each of said flangesbeing provided with an orifice and a recess adapted to receive aregistering portion of the end members, said portion, in assembledcondition of the coupling means, protruding from said recess.

2. In a coupling means for outer conductor sections of a co-axial cable,two end members provided with registering tapered end portions andadjacent registering cylindrical portions, the tapers of said endportions being at slightly different angles, one of said end membersbeing also provided with a recess adapted to receive a projection of theother end member and to receive packing means between said projectionand the surface of said recess, means adapted to bring said end membersinto engagement, and to cause formation of contact at the tips of saidtapered end portions, said means comprising two loose flanges ofsubstantially equal design, and elements for bringing said flanges intoengagement, each of said flanges being provided with an orifice and arecess adapted to receive a registering portion of the end members, saidportions, in assembled condition of the coupling means, protruding fromsaid recess.

WILLIAM A. BRUNO.

